Oops, I wasn't clear and meant something a bit simpler. It appears the DOM0_SETDOMAINMAXMEM op does not exist in xm. libxc has it, but it seems to be missing higher up in xend. I was surprised xm didn't cover all the dom0 ops -- unless I'm being dumb and missed it. I'm using my perl script to handle that op for now.

btw, I've also hit that problem people mentioned before about domains restarting too fast to kill. They are real hard to destroy when the domain dies instantly. Fortunately killing xend itself does the trick.

I'd prefer if xm could accept the domain-name to identify domains (as well as the xen assigned domain number).